hash-wallet/lib/core/template_validator.dart

import 'package:cake_wallet/core/validator.dart';
import 'package:cake_wallet/generated/i18n.dart';

class TemplateValidator extends TextValidator {
  TemplateValidator()
      : super(
          minLength: 0,
          maxLength: 0,
          pattern: '''^[^`,'"]{1,20}\$''',
          errorMessage: S.current.error_text_template
        );
}